(4-Aminophenyl)(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)methanone hydrochloride 123769-55-1 7-(p-Aminobenzoyl)-1,5-benzodioxepane hydrochloride Methanone, (4-aminophenyl)(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-, hydrochloride